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Digital Electronics

Digital Electronics
When an input signal 1 is applied to a NOT gate, the output is ___________.

Either 0 & 1
None of these
1

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Digital Electronics
How many bits are required to store one BCD digit ?

 4
 1
 3
 2

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Digital Electronics
Which of the following codes is known as the 8421 code?

 Gray code
 XS-3 code
 BCD code
 ASCII code

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Digital Electronics
A bubbled NAND gate is equivalent to a

 OR gate
 X-OR gate
 NOR gate
 NAND gate

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Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -37 as 11011011
 -89 as 10100111
 -32 as 11100000
 -48 as 11101000

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Digital Electronics
A three-state buffer has the following output states

 Set, Reset, Halt
 Both A and B
 1, 0, float
 High, Low, Float

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